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A sample preparation device and detection method for detecting radiation gas products

A technology of gas products and detection methods, which is applied in the field of gas chromatography analysis of radiation gases, can solve problems such as infeasibility, and achieve the effect of reducing the pressure of helium

Active Publication Date: 2019-08-09
NORTHWEST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The sample in the glass bottle is in contact with the filled helium gas and the glass bottle, and there are no other objects. This makes it impossible to rely on the installation of a closed plug on the glass bottle to irradiate and obtain radiation gas. Therefore, it is necessary to design A new device meets the needs of experiments

Method used

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  • A sample preparation device and detection method for detecting radiation gas products
  • A sample preparation device and detection method for detecting radiation gas products
  • A sample preparation device and detection method for detecting radiation gas products

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Experimental program
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specific Embodiment

[0045] The implementation process of embodiment 1-12 is shown in the table below:

[0046]

Embodiment 1

[0047] Filling gas in embodiment 1 is air, and the sample that injects in the glass container 12 is distilled water, after placing the sample to be irradiated for 8 days, the sample to be irradiated is connected to the gas chromatograph, and its gas chromatogram is as follows image 3 Shown: Gas chromatography shows that the micro-area of ​​hydrogen gas (microvolt*second) is 263.3, and the concentration in the air is 0.054%. After standardization, the volume of hydrogen gas in the air sample is 0.000101ml (under one standard atmospheric pressure), and the hydrogen gas is Mass is 9.1×10 -9 g, the number of moles of hydrogen is 4.55×10 -9 mol. This amount of hydrogen is the amount of hydrogen in the gas above the distilled water sample in the glass container that has been placed for 8 days.

Embodiment 2

[0048] The gas chromatogram that embodiment 2 obtains, as Figure 4 As shown, the hydrogen microarea (microvolt*second) in the radiation gas is 122535.3, and the hydrogen concentration is 22.29%. After standardization, the hydrogen volume in the radiation gas sample is 0.0471ml (under one standard atmospheric pressure), and the hydrogen mass is 4.24 ×10 -6 g, the number of moles of hydrogen is 2.12×10 -6 mol. The above shows that the amount of hydrogen in the air is greatly increased after the yellow sea water filled with air is irradiated.

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Abstract

The invention discloses a sample preparation device for detecting radiation gas products and a detection method thereof, comprising a first pipeline connected to a helium inlet, the first pipeline is detachably connected to a sealed glass container, and the first pipeline is also connected to a vacuum pumping device and a balloon; wherein the glass container is provided with a sealing structure and a long tube of glass, and the glass container is provided with a sample; wherein the long tube of glass communicates with the inside of the glass container, and the long tube of glass communicates with the first pipeline; the sealing structure includes a tube connected to the glass container The short tube glass is provided with a sealing plug on the opening of the short tube glass; the long tube glass is separated from the third pipeline, and the long tube glass communicates with the gas chromatograph through the fourth pipeline. The device can be put into a radiation field as a glass sealing box for radiation, and can also be connected with a gas chromatograph as a sample preparation device for radiation gas detection. The device is simple, efficient, low cost and effective.

Description

technical field [0001] The invention belongs to the technical field of gas chromatography analysis of radiation gas, and in particular relates to a sample preparation device for detecting radiation gas products and a detection method thereof. Background technique [0002] In China, few people have been involved in the radiation water experiment, and no one has been involved in the design of the experimental device. In foreign countries, radiation water experiments have been used to study possible safety issues in the nuclear industry waste disposal process (Pastina, 2001; Fourdrin, 2013; Chupin, 2017) or to study the production of hydrogen as a clean energy source (Cecal, 2008). The radiation water experiment mainly includes two steps, sample radiation and detection of radiation products (gas). Radiation technology and gas detection technology are quite mature. The difficulty of this experiment is the preparation of the sample and how to take out the irradiated gas produc...

Claims

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Application Information

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IPC IPC(8): G01N30/06G01N30/20
CPCG01N30/06G01N30/20
Inventor 王文青刘池阳张东东刘文汇马奂奂全晓园
Owner NORTHWEST UNIV
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